<!-- 自定义导航栏 -->
<template>
  <view class="uni-navbar" :class="{ 'uni-dark': dark }">
    <view
      :class="{
        'uni-navbar--fixed': fixed,
        'uni-navbar--shadow': shadow,
        'uni-navbar--border': border,
      }"
      class="uni-navbar__content"
    >
      <view class="fixed-bg" :class="[opacity ? '' : opacityBgUi]"></view>
      <su-status-bar v-if="statusBar" />
      <view
        :style="{
          color: themeColor,
          height: navbarHeight,
          background: backgroundColor,
        }"
        class="uni-navbar__header"
      >
        <view class="uni-navbar__header-btns uni-navbar__header-btns-left" :style="{ width: leftIconWidth }">
          <slot name="left">
            <view v-if="leftIcon.length > 0" class="uni-navbar__content_view">
              <view class="icon-box ss-flex">
                <view class="icon-button icon-button-left ss-flex ss-row-center" @tap="onClickLeft">
                  <text v-if="hasHistory" class="sicon-back" />
                  <text v-else class="sicon-home" />
                </view>
                <view class="line"></view>
                <view class="icon-button icon-button-right ss-flex ss-row-center" @tap="showMenuTools">
                  <text class="sicon-more" />
                </view>
              </view>
            </view>
            <view
              v-if="titleAlign === 'left' && title.length && sheep.$platform.name !== 'WechatOfficialAccount'"
              :class="{ 'uni-navbar-btn-icon-left': !leftIcon.length > 0 }"
              class="uni-navbar-btn-text"
            >
              <text :style="{ color: themeColor, fontSize: '18px' }">{{ title }}</text>
            </view>
          </slot>
        </view>
        <view v-if="tools === 'search'" class="ss-flex-1">
          <slot name="center">
            <uni-search-bar
              v-model="searchModel"
              class="ss-flex-1 search-box"
              :radius="20"
              placeholder="请输入关键词"
              cancel-button="none"
              @confirm="onSearch"
            />
          </slot>
        </view>
        <view v-else class="uni-navbar__header-container" @tap="onClickTitle">
          <slot name="center">
            <view
              v-if="tools === 'title' && titleAlign === 'center' && title.length"
              class="uni-navbar__header-container-inner"
            >
              <text :style="{ color: themeColor, fontSize: '36rpx' }" class="ss-line-1">{{ title }}</text>
            </view>
          </slot>
        </view>
      </view>
    </view>
    <view v-if="placeholder" class="uni-navbar__placeholder">
      <su-status-bar v-if="statusBar" />
      <view class="uni-navbar__placeholder-view" :style="{ height: navbarHeight }" />
    </view>
    <!-- 头部问题 -->
    <!-- #ifdef MP -->
    <!-- <view :style="[capsuleStyle]"></view> -->
    <!-- #endif -->
  </view>
</template>

<script setup>
import sheep from '@/sheep'
import { onLoad } from '@dcloudio/uni-app'
import { showMenuTools, closeMenuTools } from '@/hooks/useModal'
import { computed, ref } from 'vue'

/**
 * NavBar 自定义导航栏
 * @description 导航栏组件，主要用于头部导航
 * @property {Boolean} dark 开启黑暗模式
 * @property {String} title 标题文字
 * @property {String} rightText 右侧按钮文本
 * @property {String} leftIcon 左侧按钮图标
 * @property {String} rightIcon 右侧按钮图标
 * @property {String} color 图标和文字颜色
 * @property {String} backgroundColor 导航栏背景颜色
 * @property {Boolean} fixed = [true|false] 是否固定顶部
 * @property {Boolean} statusBar = [true|false] 是否包含状态栏
 * @property {Boolean} shadow = [true|false] 导航栏下是否有阴影
 * @event {Function} clickLeft 左侧按钮点击时触发
 * @event {Function} clickRight 右侧按钮点击时触发
 * @event {Function} clickTitle 中间标题点击时触发
 */

const getVal = (val) => (typeof val === 'number' ? val + 'px' : val)

const emits = defineEmits(['clickLeft', 'clickRight', 'clickTitle', 'search'])
const props = defineProps({
  dark: {
    type: Boolean,
    default: false,
  },
  modelValue: {
    type: String,
    default: '',
  },
  title: {
    type: String,
    default: '',
  },
  titleAlign: {
    type: String,
    default: 'center', // left | center
  },
  rightText: {
    type: String,
    default: '',
  },
  leftIcon: {
    type: String,
    default: 'left',
  },
  rightIcon: {
    type: String,
    default: '',
  },
  fixed: {
    type: [Boolean, String],
    default: true,
  },
  placeholder: {
    type: [Boolean, String],
    default: true,
  },
  color: {
    type: String,
    default: '',
  },
  backgroundColor: {
    type: String,
    default: '',
  },
  opacity: {
    type: [Boolean, String],
    default: false,
  },
  opacityBgUi: {
    type: String,
    default: 'bg-white',
  },
  statusBar: {
    type: [Boolean, String],
    default: false,
  },
  shadow: {
    type: [Boolean, String],
    default: false,
  },
  border: {
    type: [Boolean, String],
    default: false,
  },
  height: {
    type: [Number, String],
    default: 44,
  },
  leftWidth: {
    type: [Number, String],
    default: 80,
  },
  rightWidth: {
    type: [Number, String],
    default: 0,
  },
  tools: {
    type: String,
    default: 'title',
  },
  defaultSearch: {
    type: String,
    default: '',
  },
})

const capsuleStyle = computed(() => {
  return {
    width: sheep.$platform.capsule.width + 'px',
    height: sheep.$platform.capsule.height + 'px',
    margin: '0 ' + (sheep.$platform.device.windowWidth - sheep.$platform.capsule.right) + 'px',
  }
})

const searchModel = computed(() => {
  return props.defaultSearch
})

const themeBgColor = computed(() => {
  if (props.dark) {
    // 默认值
    if (props.backgroundColor) {
      return props.backgroundColor
    } else {
      return props.dark ? '#333' : '#FFF'
    }
  }
  return props.backgroundColor || '#FFF'
})
const themeColor = computed(() => {
  if (props.dark) {
    // 默认值
    if (props.color) {
      return props.color
    } else {
      return props.dark ? '#fff' : '#333'
    }
  }
  return props.color || '#333'
})
const navbarHeight = computed(() => {
  return getVal(props.height)
})
const leftIconWidth = computed(() => {
  return getVal(props.leftWidth)
})
const rightIconWidth = computed(() => {
  return getVal(props.rightWidth)
})

function onSearch(e) {
  emits('search', e.value)
}

onLoad(() => {
  if (uni.report && props.title !== '') {
    uni.report('title', props.title)
  }
})

const hasHistory = sheep.$router.hasHistory()

function onClickLeft() {
  if (hasHistory) {
    sheep.$router.back()
  } else {
    sheep.$router.go('/pages/index/index')
  }
  emits('clickLeft')
}
function onClickRight() {
  showMenuTools()
}
function onClickTitle() {
  emits('clickTitle')
}
</script>

<style lang="scss" scoped>
.bg-main {
  background: linear-gradient(90deg, var(--ui-BG-Main), var(--ui-BG-Main-gradient)) !important;
  color: #fff !important;
}
.icon-box {
  background: #ffffff;
  box-shadow: 0px 0px 4rpx rgba(51, 51, 51, 0.08), 0px 4rpx 6rpx 2rpx rgba(102, 102, 102, 0.12);
  border-radius: 30rpx;
  width: 134rpx;
  height: 56rpx;
  margin-left: 8rpx;
  .line {
    width: 2rpx;
    height: 24rpx;
    background: #e5e5e7;
  }
  .sicon-back {
    font-size: 32rpx;
    color: #000;
  }
  .sicon-home {
    font-size: 32rpx;
    color: #000;
  }
  .sicon-more {
    font-size: 32rpx;
    color: #000;
  }
  .icon-button {
    width: 67rpx;
    height: 56rpx;
    &-left:hover {
      background: rgba(0, 0, 0, 0.16);
      border-radius: 30rpx 0px 0px 30rpx;
    }
    &-right:hover {
      background: rgba(0, 0, 0, 0.16);
      border-radius: 0px 30rpx 30rpx 0px;
    }
  }
}

$nav-height: 44px;

.fixed-bg {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  z-index: 1;
  pointer-events: none;
}

.uni-nav-bar-text {
  /* #ifdef APP-PLUS */
  font-size: 34rpx;
  /* #endif */
  /* #ifndef APP-PLUS */
  font-size: 14px;
  /* #endif */
}

.uni-nav-bar-right-text {
  font-size: 12px;
}

.uni-navbar__content {
  position: relative;
  // background-color: #fff;
  // box-sizing: border-box;
  background-color: transparent;
}

.uni-navbar__content_view {
  // box-sizing: border-box;
}

.uni-navbar-btn-text {
  /* #ifndef APP-NVUE */
  display: flex;
  /* #endif */
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  line-height: 18px;
}

.uni-navbar__header {
  /* #ifndef APP-NVUE */
  display: flex;
  /* #endif */
  padding: 0 10px;
  flex-direction: row;
  justify-content: space-between;
  height: $nav-height;
  font-size: 12px;
  position: relative;
  z-index: 2;
}

.uni-navbar__header-btns {
  /* #ifndef APP-NVUE */
  overflow: hidden;
  display: flex;
  /* #endif */
  flex-wrap: nowrap;
  flex-direction: row;
  // min-width: 120rpx;
  min-width: 40rpx;
  // padding: 0 6px;
  justify-content: center;
  align-items: center;
  /* #ifdef H5 */
  cursor: pointer;
  /* #endif */
}

.uni-navbar__header-btns-left {
  /* #ifndef APP-NVUE */
  display: flex;
  /* #endif */
  width: 120rpx;
  justify-content: flex-start;
  align-items: center;
}

.uni-navbar__header-btns-right {
  /* #ifndef APP-NVUE */
  display: flex;
  /* #endif */
  flex-direction: row;
  // width: 150rpx;
  // padding-right: 30rpx;
  justify-content: flex-end;
  align-items: center;
}
.uni-navbar__header-container {
  /* #ifndef APP-NVUE */
  // display: flex;
  /* #endif */
  // flex: 1;
  // padding: 0 10px;
  // overflow: hidden;
  position: absolute;
  left: 50%;
  transform: translateX(-50%) translateY(-50%);
  top: 50%;
}

.uni-navbar__header-container-inner {
  /* #ifndef APP-NVUE */
  display: flex;
  /* #endif */
  flex: 1;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  overflow: hidden;
  // box-sizing: border-box;
}

.uni-navbar__placeholder-view {
  height: $nav-height;
}

.uni-navbar--fixed {
  position: fixed;
  z-index: 998;
  /* #ifdef H5 */
  left: var(--window-left);
  right: var(--window-right);
  /* #endif */
  /* #ifndef H5 */
  left: 0;
  right: 0;
  /* #endif */
}

.uni-navbar--shadow {
  box-shadow: 0 1px 6px #ccc;
}

.uni-navbar--border {
  border-bottom-width: 1rpx;
  border-bottom-style: solid;
  border-bottom-color: #eee;
}

.uni-ellipsis-1 {
  overflow: hidden;
  /* #ifndef APP-NVUE */
  white-space: nowrap;
  text-overflow: ellipsis;
  /* #endif */
  /* #ifdef APP-NVUE */
  lines: 1;
  text-overflow: ellipsis;
  /* #endif */
}

// 暗主题配置
.uni-dark {
}
</style>
